Gripper



G. H. BROWN.

GRIPPER.

APPLICATION FILED JUNE 19, I919. I 1,334,015. Patented Mar.16,192,0.

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Inventor.

Attorney.

W .GEORGJ H. BRO'WN, 0F VIARWIGK, RHODE ISLAND.)

GBIPP ER.

Specification of Letters Patent. latented liar.- 16,- 1920.

Application filed June 19, 1919. Serial No. 305,307.

To all w/wmit may concern:

Be it known that I, Gnonon Bnown, a citizen of the United States,residing at *wick, in the county of Kent and State if ilhode lsl ilti,have invented cer ain new and useful improvements in Grippers, of whicthe following is a specification.

iy ventio slates to grippers for printing presses, has for its essentialobjects the inclusion in gripper of means for not only holding the paperin its place on the platen but also means for contemporane ouslyperforming auxiliary operations. upon the paper being printed, such ascutting, punching. perforating, embossing and creasing. Further objectsare compactness, inexpensiveness, strength, and facility ofimunpulation.

To the above ends essentially my invention consists in such parts and insuch combinations of parts as tall within the scope of the appendedclaims.

In the accompanying drawings which torm a part of this specification,

Figure 1 is an elevation of my gripper mounted on the gripper rockingbar, a portion of the latter being broken away,

Fig. 2, a side elevation of the same, showmg the rocking bar in section,

Fig. 3. a section on line 33 of Fig. 1,

Fig. i, a front elevation of the gripper engaged with a creasing member,

Fig. 5, a section or" the same on line i -5 of Fig. a.

Figs. 6 and 7, side elevations of portions of a creasing and perforatinglade respec-- tively.

Fig. 8, an elevation of the gripper in which is mounted a punch.

Figs. 9 and 10, a side elevation and a central vertical sectionrespectively ofa punch.

Fig. 11, a plan of an embossing die,

Fig. 12, a section on line- 1212 of Fig. 11,

Figs. 13 and 14, a plan and a transverse section respectively of a typeholder and contents,

Fig. 15, a perspective view tab cutter, and

Fig. 16, a front elevation of a modified form of my invention.

Like reference characters indicate like parts throughout the views.

in the drawings 17 is the usual rocking bar of a printing press of theusual construction provided with a longitudinal slot 18 through whichpasses the bolt 19. The bolt also traverses a hole 20 in the base orenlarged end 21of the gripper. By means of a nut in conjunction with thehead 23 of the bolt the parts are adjustably'clamped at any positionlongitudinally ofthe rocking bar. This attaching means is not exclusive.

The gripper proper comprises integral wi h its enlarged attachingportion 21 a bar or rod 25 ot' preferably rectangular cross sectionprovided with threaded openings 2G, in this instance four in number, disosed at equal intervals throughout the rod. In these openings are screws28 slidable'through openings 29 similarly disposed in a clamping bar orrod 30. The heads 31 or the screws engage the bar 30.

In the form of gripper member shown in Fig. l included, clamped betweenthe rods 25 and 80, a creasing member or plate 33 provided atintervalswith holes 34: to admit the screw 28 therethrough. The blade 33 has anoperating portion 36 which projects laterally beyond the plane of therods .25 and 30.

When perforating of the paper is to be performed there is embodied inthe gripper, in place of the blade 33, a like blade 88 provided withopenings 39 for screws and having a series of cutting edges 41.

In Fig. 8 the gripper is provided with a device for cutting circularholes in the paper being printed. This device is a die comprising arectangular body 48 provided with an annular cutting edge or elevation44, extending from which through the body is an opening d5 to admitpassage of the disks cut -from the paper. The block is preferablyfrictionally clamped between the rods and 30 with the operating portionprojecting laterally beyond the plane of the rods 25 and 30.

In like. manner may be mounted in the gripper an embossing diecomprising a rectangular body 16 provided in its upper or operating face47 with a figured depression 4-8. This member is also clamped in such amanner that the operating portion l7 projectslaterally beyond the rods25 and 30.

In like manner may be mounted in the gripper an oblong rectangularholder 50 carrying type 52 whose operating portions laterally project.

When it is desired to cut portions of the paper being printed, as forinstance, to form tabs thereon, a plate 54 is provided having a lateralarm 55 with an upturned lip 56 upon its extremity. On the face of theplate is an arcuate blade 57 with a sharp cutting edge or operating face58. The blade is fast in posts 59 on the face of the plate. The lip 56may be clamped between the rods 2-5 and 30 of the gripper and theoperating portion 58 projects beyond the plane of the gripper rods.

The gripper may comprise, as shown in Fig. 16, more than one clampingrod, as 62, in all respects like rod 30, except that it preferred it maybe shorter. Thus several operations may be performed at once. Theillustration shows a perforating blade 38 and a punching die 48.

It will be understood that a series of grippers may be attached to asingle rocking bar 17.

It is apparent that the gripper may support in an analogous manner notonly a type holder but electrotypes printing through an ink ribbon andsuch other deyiees as may be used for effecting paper visible ormechanically, Such action is better performed it the devices employedare free from contact with the ink rollers of the press. p 7 e Thegripper operates in the usual manner. That is to say, it is locatedbetween the bed ot the printing press andthe platen, and as the latteradvances to the bed the dieor i bar laterally thereof provided withspaced threaded openings, a clamping rod provided with spaced openingsand clamping screws disposed parallel with the rocking bar extendingthrough the openings in both rods.

2. In a printing press, the combination of a rocking bar, a gripper rodmounted on the bar, a elan'iping rod, clamping screws con-- necting therods and members embraced by the rods provided with operating portionsprojecting laterally beyond the faces of the rods.

In testimony whereot I have afiixed my signature, e

GEORGE -H BROWN.

